I dropped my laptop on the floor and there was no damage aftermath. Concurrently, that day I was watching a lot of longlasting youtube videos and the PC was working well . Roughly six hours later, a screaming rhythmic noise started bothering and still continues to this moment, except when I am in youtube video watching (ironically, as it suppose to be the opposite). When the video ends, the scream starts again. When I am watching videos, the scream disappears. The noise is the loudest when I start the PC/windows and milder when I start working on PC. Please help me understand whether it is the HARD DRIVER FAN damaged (which is an agony sign) or it is a type of weird bug, virus? Thanks.
